Roller support for sliding doors



April 22, 1952 MYHR 2,594,058

ROLLER SUPPORT FOR SLIDING DOORS Filed May 6, 1949 INVENTOR. 27

- Harold 6? 114 121- HIS A T TOHNE" Y Patented Apr. 22, 1952 UNITEDSTATES PATENT OFFICE ROLLER SUPPORT FOR SLIDING DOORS Harold G. Myhr,Pacific Grove, Calif. Application May 6, 1949, Serial No. 91,836

1 Claim. 1

This invention relates to a roller support for sliding doors and has forone of its objects the production of a simple and efficient means forsupporting a slidin door in a manner whereby the door may easily slideto and from a closed position without binding.

A further object of this invention is the production of a simple andefiicient means for bracing and keeping the door straight and preventingthe door from warping.

Other objects and advantages of the present invention will appearthroughout the following specification and claim.

In the drawing:

Figure 1 is a side elevational view of my improved door structure,certain parts being broken away and certain parts being shown inlongitudinal section;

Figure 2 is a vertical sectional view taken on line 2-2 of Figure 1;

Figure 3 is a fragmentary sectional perspective view of the bottomchannel or binder strip;

Figure 4 is a longitudinal sectional view taken on line 4-4 of Figure 1;

Figure 5 is a perspective view of one of the end plates;

Figure 6 is a fragmentary sectional view of a modified form of theinvention, certain parts being shown in longitudinal section;

Figure 7 is a vertical sectional view taken on line 1-1 of Figure 6; and

Figure 8 is a perspective view of the roller carrying member shown inFigure 6.

By referring to the drawing, it will be seen that It] designates thedoor which is provided with an upper longitudinal channel or binderstrip I I which encases the upper edge of the door I 0. The ends of thedoor II) are also encased in vertical channel or binder strips I2, whichare similar to the strip II. The bottom edge of the door I!) is providedwith a plurality of roller receiving notches I3 which are located atproper points to permit the rollers mounted therein to efiicientlysupport the door. These notches are formed in the lower edge of the doorI to register with selected apertures I4 which are preformed in thebottom channel or binder strip I throughout the length thereof, as shownin Figure 3.

Roller carrying frames I6 which carry rollers I! are fitted upon thelower edges of the door I 0 in a position to support a roller I! in aselected notch I3, the lower edge of the roller or rollers I'Iprotruding below the lower edge of the door and through the aperture orapertures I4, so as to restupon the invented T-shaped supporting trackIS. The track l8 rests upon the floor below the bottom edge of the doorIll and extends for a proper distance to support the door in itsmovement to and from an open and closed position. The bottom channel orhinder strip I5 comprises a longitudinally extending central doorengaging portion I9 in which the apertures I 4 are formed and whichabuts the bottom edge of the door Ill. The strip I 5 is provided withdepressed channels 20 which flank either side of the central portion I9.The strip I5 is also provided with upstanding side flanges 2| havinginturned edges which abut the side faces of the door I0, as shown inFigure 2. C10- sure plates 22 are-carried by the' ends of the door Inand shield the ends of the strip I5.

It will be noted by considering particularly Figures 2 and 3, that thechannel strip I5 is provided with longitudinally aligned rollerreceiving slots I4 formed therein through which the rollers I 1 extend.The strip I5also is provided with longitudinally extending laterallyspaced parallel depressed channels 20 depending below the rollers,thereby defining lateral guards upon opposite sides of the rollers toprevent accidental lateral displacement of the rollers from a supportingrail upon which the rollers are adapted to travel. The upstanding sideflanges 2| upon each side of the strip are located laterally of thechannels and each flange 2| is provided with an upper inturned doorabutment edge to hold the flange 2| in braced laterally spaced relationrelative to the bottom edge of the door upon which the roller support isadapted to be carried.

In Figures 6 and '7 there is shown a modified form of the inventionwherein the door 23 is provided with an upper channel bracing strip 24and end strips 25 generally similar to the strips shown in Figure 1. Thedoor 23 is notched at selected intervals to provide notches 26 along thelower edge of the door 23 and to register with selected preformedapertures 21 formed in the bottom channel or binder strip 28. A rollercarrying member 29 is fixed to the under face of the bottom strip 28, asshown in Figure 6, adjacent each selected notch 26 to support a roller30 within the selected notch 26. The roller 30 is journaled upon theupstanding plates 3| of the member 29. The roller 30 protrudes below thebottom of the member 29 and rests upon the inverted T-shaped track 32.The strip 28 is generally of the same structure as that shown in Figure3, but the strips may be changed if notches at selected locations,whereas in other 7 instances more rollers may be required for eflicientoperation, in which event any desired number of notches may be formed inthe lower edge of the door to accommodate the desired number of rollerswhich may be located to register with the selected apertures in thestrips and 28.

By means of the structure illustrated this will facilitate the buildingof a strong and efficient door even if the door may be constructed ofplywood. Furthermore, the structure illustrated provides a veryeconomically-constructed door.

It should be noted that the depressed channels or depressed channelportions which flank either side of the central portion I9--note Figure2 of the drawing, provide means to prevent lateral displacement of therollers relative to the supporting track. The upstanding side flanges 2|of the channel strip will protect the sides of the door adjacent thebottom thereof.

Certain detail changes in the construction and arrangement of parts maybe made provided such changes fall within the scope of the appended Iclaim.

Having described the invention, what I claim as new is:

A roller support for sliding doors and the like, comprising a rollerreceiving channel strip having longitudinally aligned roller receivingslots formed therein, rollers extending through said slots, said striphaving longitudinally extending laterally spaced parallel depressedchannels depending below said rollers thereby defining lateral guardsupon opposite sides of said rollers to prevent accidental lateraldisplacement of the rollers from a supporting rail upon which therollers are adapted to travel, and an upstanding side flange upon eachside of said strip laterally of each channel, and each flange having anupper inturned door abutment edge to hold the flange in braced lateralspaced relation relative to a door upon which the strip is adapted to besecured thereby defining a spaced shield along the bottom edge of thedoor upon which the roller support is adapted to be carried.

, HAROLD G. MYHR.

REFERENCES CITED The following references are of record in th file ofthis patent:

UNITED STATES PATENTS Germany Nov. 21, 1932

